TM 9-2350-247-10OPERATE NBC AIR FILTER SYSTEM (M548A3) — Continued 0053 002. Turn NBC AIR FILTER switch ON.NOTEHold your breath while you put on and seal protective mask.Detailed information concerning the protective mask can be found in TM 3-4240-280-10.3. Put on M25A1 protective mask.4. Clear and seal M25A1 protective mask.5. Pull out boom microphone connector from receptacle on helmet. Plug in protective mask microphone connector toreceptacle on helmet.0053 00-3
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business